Oil-burner.



L E Z T E W T.

'on BURNER.

APPLICATION FILED AUG.I6| l9l6.

Patented Oct. 9, 1917.

SHEETS-SHEET l.

:NTO/e. THEDE VVE TZEL wn ww iiiriononrngwnrznsorsAN FRA-Nordsee,"cAniroii Be it known thatljyminononn WETzEmla citizen f of ftheUnited`States, resdngeatjsan Francisco, ithe {coiinty *of SanA Francisco,State "o'f -Ciiliforniafhaif-einvented a new and useful Oil-Burner, ofwhich the following is a :specification Lxin -su'hul'l :and clear termsas will enable those skilledY in the art to construct and use the same.

rIhis invention relates to an internal mixing oil burner having'meansfor increasing or diminishing the quantity of oil burned while the oilis at all times completely and thoroughly mixed with the steam wherebyit is perfectly atomized when it issues from the nozzle.

It will be understood by those skilled in the art that while manyburners will work properly under a given steam and oil pressure V'thatthey do not work well when the quantity of steam or oil is reduced,making it very diicult to regulate the lire produced by them.

With the present invention means is provided for varying the size of themixing chamber whereby an increased or decreased quantity of oil will beproperly mixed.

The result of the mixing and atomization of the oil at different oil andsteam pressures is that the oil is burned without a carbon deposit atthe lburner tip and no heavy black smoke.

An embodiment ofthe invention is shown in the drawing in which the samereference numeral is applied to the same' portion throughout, but I amaware that there may v be many modifications thereof,

Figure 1 is a side elevation partly in section of the complete burner,the line of section being indicated on Fig. 7

Fig. 2 is a vertical sectional view of the burner adjacent the slidablesteam supply Flg. 3 1s a front elevatlon of the burner tip,

Fig. 4 is an end elevation of the burner looking toward the furnace, theadjusting wheel being removed, Y

Fig. 5 is an end view of the front mixer,

Fig. 6 is a side elevation of the mixer showing the front and rearmembers thereof,

Fig. 7 is an end elevation of the rear mixer, and

Fig. 8 is a plan in section of the burner tip.

The burner is assembled on a circular connection 3 and 4 for the fflfsteam sudati@ anatema-fasted, whereby iip'lng glands are formed aroundthe two,

slidable steam pipes 9 and 10, areturn bend 11 connecting said `pipeswhile a plate 12 is also connected therewith and has a lug 13 throughwhich a long screw'14` passes. The screw has a portion 15 turned downsmall to pass through a block 16 and short tube 17 which allow the screwto turn in the lug 13 toV adjust the position of the steam pipes andmixing nozzle in the mixing chamber. The hand wheel 18 is secured on thescrewV with a pin 19. A U bolt 20 rigidly connects the return bend andplate 12.

The nipple 3 has a T 22 connected therewith into the lower side of whichAthe oil supply pipe 23 is connected. A pipe 24 is also connected withthe T 22 and itl has a socket 25, bushing 26, nipple 27 `and burner tip28 on its end.

The pipe 10 extends into the pipe 24 forming theinternal mixing chamberand it carries the mixing nozzle 29 on its end, said nozzle having aseries of spiral grooves 30 and a plurality of openings 31, 32 for theescape of the steam. On the front of the mixing nozzle 29 there is amixing head connected thereto with athreaded rod v33 `provided with twooppositely placed conical skirts 34, 35, the former having a pluralityof openings therethrough.

In operation the steam passes to the burner from the pipe 10, escapes tothe mixing chamber through the holes 31, 32, and through the holes inthemember 34 thereby elfectually mixing the oil in thev chamber` the supplyof oil and steam is increased and the steam nozzle is pulled back toincrease the size of the mixing chamber, and the reverse operation isgone throughwith when a smaller* flame is desired.

Havingv thus described my invention what I claim as new and desire tosecure by Letj i I ters Patent of the United States, is as fol- V`steamnozzle on the end. of thev steam pipe I lows, express reservation beingmade of peI'-v missible modificationS':l

1. An oil burner comprising a burner pipe forming a, mixmg chamber, asteam pipe slidable into said mixing chamber, means to adjust the Vpositionfof'l said steam; pipe, a

within the mixing chamber, and a double conical -tip forming' means for-mixing the steam and oil in front ofthe steam-nozzle and securedthereto. s

2. An oil burner` comprising a burner pipe forming a mixing chamber, oilnel steam supplyl pipestherei'or, a pair packing boxes, a U shaped steampipe extending into both'offsaid packing boxes for supplying steam tothe mixing chamber, a steam nozzle kvhaving spiral passageways on thesteam pipe Within the mixingehamber, and means to move the steam pipelongitudinally of the pipe forming the mixing chamber to increase Copiesof 'this patent may be .obtsined forrve cents each, by addressing theCommissioner of Patents.-

, Washington, D. C. A Y Y i

